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P98054

- COX2_THEVL

UniProt

P98054 - COX2_THEVL

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Protein

Cytochrome c oxidase subunit 2

Gene

ctaC

Organism
Thermosynechococcus vulcanus (Synechococcus vulcanus)
Status
Reviewed - Annotation score: 3 out of 5- Protein inferred from homologyi

Functioni

Subunits I and II form the functional core of the enzyme complex. Electrons originating in cytochrome c are transferred via heme a and Cu(A) to the binuclear center formed by heme a3 and Cu(B).

Catalytic activityi

4 ferrocytochrome c + O2 + 4 H+ = 4 ferricytochrome c + 2 H2O.

Cofactori

Cu cationNote: Binds a copper A center.

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Metal bindingi221 – 2211Copper ACurated
Metal bindingi255 – 2551Copper ACurated
Metal bindingi259 – 2591Copper ACurated
Metal bindingi263 – 2631Copper ACurated

GO - Molecular functioni

  1. copper ion binding Source: InterPro
  2. cytochrome-c oxidase activity Source: UniProtKB-EC

GO - Biological processi

  1. electron transport chain Source: InterPro
Complete GO annotation...

Keywords - Molecular functioni

Oxidoreductase

Keywords - Biological processi

Electron transport, Respiratory chain, Transport

Keywords - Ligandi

Copper, Metal-binding

Names & Taxonomyi

Protein namesi
Recommended name:
Cytochrome c oxidase subunit 2 (EC:1.9.3.1)
Alternative name(s):
Cytochrome aa3 subunit 2
Cytochrome c oxidase polypeptide II
Oxidase aa(3) subunit 2
Gene namesi
Name:ctaC
OrganismiThermosynechococcus vulcanus (Synechococcus vulcanus)
Taxonomic identifieri32053 [NCBI]
Taxonomic lineageiBacteriaCyanobacteriaOscillatoriophycideaeChroococcalesThermosynechococcus

Subcellular locationi

Topology

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Transmembranei56 – 7823HelicalSequence AnalysisAdd
BLAST
Transmembranei96 – 11419HelicalSequence AnalysisAdd
BLAST

GO - Cellular componenti

  1. integral component of membrane Source: UniProtKB-KW
  2. plasma membrane Source: UniProtKB-KW
  3. respiratory chain Source: UniProtKB-KW
Complete GO annotation...

Keywords - Cellular componenti

Cell membrane, Membrane

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Signal peptidei1 – 2323Sequence AnalysisAdd
BLAST
Chaini24 – 327304Cytochrome c oxidase subunit 2PRO_0000006064Add
BLAST

Structurei

3D structure databases

ProteinModelPortaliP98054.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Keywords - Domaini

Signal, Transmembrane, Transmembrane helix

Family and domain databases

Gene3Di1.10.287.90. 1 hit.
2.60.40.420. 2 hits.
InterProiIPR001505. Copper_CuA.
IPR008972. Cupredoxin.
IPR002429. Cyt_c_oxidase_su2_C.
IPR011759. Cyt_c_oxidase_su2_TM_dom.
[Graphical view]
PfamiPF00116. COX2. 1 hit.
PF02790. COX2_TM. 1 hit.
[Graphical view]
SUPFAMiSSF49503. SSF49503. 1 hit.
SSF81464. SSF81464. 1 hit.
PROSITEiPS00078. COX2. 1 hit.
PS50857. COX2_CUA. 1 hit.
PS50999. COX2_TM. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

P98054-1 [UniParc]FASTAAdd to Basket

« Hide

        10         20         30         40         50
MEQIPASIWT LTAGVVVTLI SFWVGHHHGL LPEQASEQAP LVDNFFDIML
60 70 80 90 100
TIGTALFLVV QGAIILFVIR YRRRAGEEGD GLPVEGNLPL EAFWTAIPAL
110 120 130 140 150
IVIFLGIYSV DIFQRMGGLN PGDHAMHSMH APKSGMAVVA QAPSKTTSDA
160 170 180 190 200
TALLAAAQPP EIGIGASPDV QGKAPDLVVD VAGMQYAWIF TYPDSGIVSG
210 220 230 240 250
ELHIPVGKDV QLNLSARDVI HSFWVPQFRL KQDAIPGVPT TRFKATKVGT
260 270 280 290 300
YPVVCAELCG GYHGAMRTQV IVHTPEDFET WRRQNQAIAT APVIPSLRDR
310 320
HIHEMGVTAE LVAQVEAIAH DPSAEKL
Length:327
Mass (Da):35,356
Last modified:October 1, 1996 - v1
Checksum:i2C28F9C68D3B7A13
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
D16254 Genomic DNA. Translation: BAA41040.1.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
D16254 Genomic DNA. Translation: BAA41040.1 .

3D structure databases

ProteinModelPortali P98054.
ModBasei Search...
MobiDBi Search...

Protocols and materials databases

Structural Biology Knowledgebase Search...

Family and domain databases

Gene3Di 1.10.287.90. 1 hit.
2.60.40.420. 2 hits.
InterProi IPR001505. Copper_CuA.
IPR008972. Cupredoxin.
IPR002429. Cyt_c_oxidase_su2_C.
IPR011759. Cyt_c_oxidase_su2_TM_dom.
[Graphical view ]
Pfami PF00116. COX2. 1 hit.
PF02790. COX2_TM. 1 hit.
[Graphical view ]
SUPFAMi SSF49503. SSF49503. 1 hit.
SSF81464. SSF81464. 1 hit.
PROSITEi PS00078. COX2. 1 hit.
PS50857. COX2_CUA. 1 hit.
PS50999. COX2_TM. 1 hit.
[Graphical view ]
ProtoNeti Search...

Publicationsi

  1. "The cytochrome C oxidase genes in blue-green algae and characteristics of the deduced protein sequence for subunit II of the thermophilic cyanobacterium Synechococcus vulcanus."
    Tano H., Sone N.
    Biochem. Biophys. Res. Commun. 181:437-442(1991) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
  2. "The genes in the thermophilic cyanobacterium Synechococcus vulcanus encoding cytochrome-c oxidase."
    Sone N., Tano H., Ishizuka M.
    Biochim. Biophys. Acta 1183:130-138(1993) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].

Entry informationi

Entry nameiCOX2_THEVL
AccessioniPrimary (citable) accession number: P98054
Entry historyi
Integrated into UniProtKB/Swiss-Prot: October 1, 1996
Last sequence update: October 1, 1996
Last modified: November 26, 2014
This is version 89 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Documents

  1. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3